html {
    height: 100vh;
    width: 100vw;
}
body {
    margin: 0;
    padding: 0;
    background: url('../img/13.jfif') ;
    background-size: cover;
}
.wrapper {
    width: 30vw;
    min-height: 400px;
    margin: 20vh auto;
    background-color: #fff;
    border: 8px solid rgba(214, 25, 25, 0.5);
    text-align: center;
    font-family:cursive;
}
h2 {
    color: cadetblue;
    font-size: 30px;
    border-bottom: 2px dotted cadetblue;
    padding-bottom: 10px;
}
ul {
    list-style: none;
    padding: 0 50px;
}
li {
    border-bottom: 1px solid #000;
    padding: 10px 0;
}
form {
    display: flex;
    padding: 0 50px;
    align-items: center;
    justify-content: center;
}
form input:nth-child(1) {
    flex: 1;
    border: 1px solid #ddd;
    height: 30px;
    margin-right: 5px;
    border-radius: 5px;
}
form input:nth-child(2) {
    border: 1px solid #ddd;
    height: 30px;
    background-color: #fff;

}
.tasks input {
    display: none;
}
.tasks input + label::before {
    content: '□';
    margin-right: 10px
}

.tasks input:checked+label::before{
    content: '√';
}

